2021小学六年级数学计算题大全简便运算及脱式计算.pdf

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1、2021六年级数学计算题大全 2021六年级数学计算题大全 简便运算及脱式计算简便运算及脱式计算 1.1. (1 8 (1 8 1 1 4 4 4 41 1 4 4 ) )1 1 2 2 2.2. (111111999999)5656(3 3 7 7 3 3 8 8 ) ) 3.3. (1 1 5 5 1 1 8 8 ) )160160 1 1 1313 4.4. 1515( 7 7 1313 2 25 5) 5.5. 6.46.44 4 5 5 1.251.253 33 3 5 5 6.6. 0.250.254 4(5 5 6 6 1 1 1212 ) ) 5 5 6 6 7.7. 7 7

2、2020 11 11 2525 14 14 2525 7 7 2020 8.8. 2 2 3 3 ( (1 1 2 2 2 2 3 3 ) )2 2 7 7 9.9. 3 3 1010 ( (1 1 2 2 1 1 3 3 ) )1 1 8 8 10.10. 7 7 5 5 280280(7.287.286.726.72) 11.11. (140140)15.615.63232(1 15 5 8 8 ) ) 3.6 3.6 12. 8 7 32 15 8 5 16 3 13. ( 3 4 5 1 4 1 ) 15 4 14. 5 4 18 5 7 3 9 7 15. 8 7 ( ( 8 7 4

3、 3 ) 5 4 16. 6( 15 2 12 1 ) 8 1 17. 2 9 5 3 2 6 1 18. 3 7 ( 5 3 20 9 23 8 ) 19. 2( 5 8 3 1 ) ) 15 4 20. 1( 8 5 2 3 4 1 ) 21. 7 5 9 8 8 7 5 7 7 5 22. (1 3 1 7 4 ) 10 3 23. ( 5 3 5 3 9 5 ) 9 4 24. 6 5 ( 4 3 2 1 ) ) 15 7 25. 16 15 1( 3 2 2 1 ) ) 26. ( 26 21 7 13 2 1 ) 9 5 27. 24 17 5 5 1 7 24 0.2 28. 7

4、 4 ( ( 6 5 5 4 ) 16 7 29. 4( 4 3 8 3 ) ) 8 1 30. 15 8 32 5 ( 10 9 6 1 ) ) 31. 3 18 5 40 27 16 13 32. 21 2 ( ( 4 3 3 2 ) 7 6 33. 5 1 3+ 5 4 3 1 34. 9 4 + 7 2 + 18 5 2 1 35. 72( 2 1 3 1 + 4 1 ) 36. 2 3 2 5 4 6 1 37. 9 8 + 7 6 3 2 + 7 3 38. 8 3 + 5 4 6 5 + 3 1 39. 7 1 11 6 + 11 5 7 40. 4 15 8 3 2 5 1 4

5、1. 9 8 (9+ 4 3 ) 3 2 42.42. 8 7 3 2 + 8 7 2 1 43.43. 5 4 + 8 5 4 1 + 2 1 44. 2 9 8 4 3 3 1 45.45. 30( 6 1 + 5 2 2 1 ) 46. 8 7 + 3 2 5 4 + 6 1 47.47. 6 12 5 10 9 8 13 48.48. 13 4 5 1 + 13 9 5 49.49. 12( 2 1 3 1 + 4 1 ) 50.50. 5 1 + 9 4 8 3 + 6 5 51.51. 4 5 2 15 8 4 1 48( 3 1 2 1 + 4 1 ) 52.52. 25 6 9

6、+ 25 6 9 8 53.53. 24( 6 1 + 8 1 ) 54.54. ( 5 3 + 4 1 )6027 55. 5 6 1 6 5 56.56. ( 5 1 7 1 )70 57.57. 97 96 5 58.58. 5 3 8+ 5 3 2 59. 15 7 3 +15 7 4 60.60. ( 9 8 + 4 3 3 2 )72 61.61. 72( 2 1 3 1 + 4 1 ) 62.62. ( 9 5 + 13 1 )9+ 13 4 63.63. 30( 2 1 3 1 + 6 1 ) 64. 7 12 ( 6 7 + 3 14 ) 65.65. 0.80.833331

7、.25 1.25 66.66. 17 17 1818 9 9 1010 17 17 1818 10 10 67.67. 9.569.564.8754.8757 7 8 8 1.44 1.44 68.68. 3 3 4 4 6 61 1 6 6 1 1 4 4 69.69. 4.64.61 13 3 8 8 8.48.4 8 8 1111 1 13 3 8 8 5 5 70.70. 4 41 12 2 3 3 6 63 3 5 5 71.71. 18183 3 5 5 19 19 2020 2 22 2 5 5 19 19 2020 19 19 2020 72.72. 2 2 2 2 2525

8、8080 8 8 1313 1.25 1.25 73.73. 25251.251.254 48 8 74.74. 0.70.73.93.94.34.36.1 6.1 75.75. 7.357.3599997.35 7.35 76.76. 47478 81717 9 9 1717 77.77. 4646101 101 78.78. 15.615.62 22 2 7 7 4 45 5 7 7 79.79. 14142 21 1 4 4 14143 33 3 4 4 80.80. 3 3 4 4 6 6 1111 3 3 1717 5 5 8 8 81.81. 8 8 9 9 7 7 1515 8

9、8 1515 9 9 8 8 8 8 9 9 82.82. 3 35 5 9 9 7 7 2020 11 11 3636 83.83. 7 7 6 6 7 7 1515 8 8 1515 84.84. 4 45 5 7 7 3 31 1 3 3 1 12 2 7 7 2 22 2 3 3 85.85. 5 5 7 7 4 4 3 3 2 2 7 7 4 4 3 3 86.86. 14 14 9 9 75755 5 9 9 3 3 4 4 87.87. (3 3 8 8 5 5 6 6 7 7 1212 ) )24 24 88.88. 2052053232656 656 89.89. 1 1 4

10、 4 5 5 2 2 ( (1 1 4 4 1 1 6 6 ) ) 90.90. 4 43 3 5 5 1 11 1 4 4 1.751.750.4 0.4 91.91. (1 1 3 3 1 1 5 5 ) )45 45 92.92. 2 2 1 1 6 6 ( (3 3 4 4 7 7 1212 ) ) 93.93. 0.30.311(3.33.32.952.95) 94.94. (5 5 6 6 1 1 3 3 )( )(5 5 8 8 1 1 4 4 ) ) 95.95. (2 2 3 3 1 1 4 4 ) )5 5 6 6 4 4 5 5 5 5 1111 96.96. (2 2

11、5 5 1 1 7 7 ) )35351 1 9 9 97.97. 2424(1 1 4 4 1 1 6 6 1 1 3 3 ) ) 98.98. 8 8 9 9 7 7 8 8 ( ( 7 7 1616 1 1 8 8 ) ) 99.99. 8.68.64.34.32 2 5 5 100.100. 6 6 7 7 ( ( 5 5 1212 0.250.25)5 5 8 8 101.101. 3.63.6 ( (4.74.72.32.3) ) 3 3 7 7 1.2 1.2 102.102. 5151 8 8 17 17 4 4 2 2 9 9 103.103. 5 5 8 8 11 11 1

12、010 3 3 8 8 10 10 1111 104.104. 9 9 2020 1 1 2 2 ( (2 2 5 5 4 4 5 5 ) ) 105.105. 6060( 5 5 1212 4 4 1515 1 1 2 2 ) ) 106.106. ( 8 8 1515 9 9 2020 2 2 3 3 ) ) 1 1 1212 107.107. 1212(1 1 3 3 1 1 4 4 ) ) 108.108. (9 910104 4 5 5 ) )3 3 4 4 109.109. 101.1101.125.9325.935.15.10.85 0.85 110.110. (5 5 8 8

13、1 1 4 4 )( )(8 8 9 9 1 11 1 3 3 ) ) 111.111. 2.62.61 1 3 3 2 23 3 5 5 2 2 3 3 112.112. 3 31 11 1 7 7 6 6 7 7 113.113. 2 2 5 5 3 3 7 7 4 4 7 7 5 5 2 2 114.114. 1212 5 5 (1 1 6 6 1 1 4 4 ) )11 11 1313 115.115. 1 1 4 4 2 2 3 3 ( (4 4 5 5 8 8 1515 ) ) 116.116. 1 14 4 5 5 1.251.251 11 1 4 4 2.22.21 11 1

14、4 4 117.117. 1313 5 5 8 8 8 8 1313 1.25 1.25 118.118. 4 44 4 5 5 4 44 4 5 5 119.119. 5 5 8 8 ( 1 1 5 5 1 1 4 4 ) ) 3 3 8 8 5 5 7 7 2 2 3 3 14 14 1515 1 1 9 9 120.120. (1010 5 5 1212 1 1 6 6 ) )1 1 3 3 121.121. 4 4 9 9 3 3 4 4 ( ( 7 7 1616 1 1 4 4 ) ) 122.122. 25.12525.12513 13 5 5 17.4 17.4 123.123.

15、 0.380.387 719 19 5050 4 419 19 5050 124.124. 6 6 1111 17171212 3 3 1111 125.125. 1 1 8 8 1 1 2 2 ( (3 3 5 5 10 10 9 9 ) 126.126. (5 5 7 7 3 3 8 8 ) ) 1 1 5656 127.127. (20.120.121216 6 7 7 ) )5.1 5.1 128.128. 7.67.65.45.41.91.95.4 5.4 129.129. 0.20.2 5 5 6 6 ( (0.150.15 9 9 2020 ) ) 130.130. 24242

16、2 3 3 ( (5 51 1 8 8 ) ) 131.131. 1 1 5 5 5 5 8 8 1 1 4 4 2 2 3 3 132.132. 1515 4 4 2121 8 8 7 7 16 16 133.133. 3.643.6411(21 21 1010 2.092.09) 134.134. (1 1 3 3 1 1 5 5 4 4 1515 ) )45 45 135.135. (3 3 4 4 3 3 4 4 2 2 5 5 ) )1 1 5 5 5 5 136.136. 2 2 9 9 5 5 6 6 ( (4 4 5 5 2 2 3 3 ) ) 137.137. 10105 5

17、 6 6 5 5 6 6 10 10 138.138. 3 3 4 4 6 6 5 5 9 9 4 4 3 3 5 5 139.139. 7 71 1 6 6 ( (0.350.352 21 1 6 6 ) ) 140.140. (3 3 4 4 1 1 3 3 ) )8 8 9 9 9 9 1010 141.141. 4 41 14 41 1 4 4 3 3 142.142. 8 8 1515 ( ( 7 7 1212 2 2 5 5 ) ) 15 15 1414 143.143. 8.58.53 3 4 4 0.750.755 56.56.51 11 1 3 3 144.144. 1 10

18、.540.540.90.90.75 0.75 145.145. 9 94 4 7 7 9 93 3 7 7 9 9 146.146. 2424 (5 5 6 6 1 1 3 3 ) )3 3 147.147. 3 3 4 4 ( (1 1 2 2 7 7 8 8 ) ) 148.148. (7 7 9 9 1 1 6 6 ) )2 2 4 4 149.149. 5 5 1111 (4 4 5 5 1 1 3 3 ) )5 5 6 6 150.150. 4 4 1515 7 7 8 8 14 14 5 5 151.151. (5 5 9 9 1 1 6 6 ) ) 5 5 1818 152.15

19、2. 3333 3838 ( (1 14 4 7 7 1 1 6 6 ) ) 153.153. (5 51 1 5 5 4 4 5 5 ) ) 4 4 5555 154.154. (1 11 1 5 5 1 1 3 3 ) )15 15 1616 155.155. 8 8 1111 9 9 4 4 3 3 1111 4 4 9 9 156.156. (3 3 5 5 1212 2 24 4 7 7 1 1 5 5 1212 1 14 4 7 7 ) ) 5 5 1212 157.157. 4 411(19 19 2020 1 1 2525 ) ) 158.158. 7 74 4 7 7 3.2

20、53.252 23 3 7 7 5.48 5.48 159.159. 64643 3 4 4 1 1 1111 1 1 1111 34341 1 4 4 160.160. 4.874.872.012.01 161.161. 6.716.713.023.02 162.162. 1421429999142142 163.163. 1.251.250.50.58 82 2 164.164. (12.512.50.050.05)8 8 165.165. 0.630.63 11 7 1.371.37 11 4 166.166. 9.429.42(1.361.362.422.42) 167.167. 12

21、.7412.74 8 1 2.262.269.8759.875 168.168. 8.488.482.612.611.391.39 169.169. 2.32.31.51.52 2 170.170. 3.53.51.81.8 171.171. 13132.52.5 172.172. 5.45.44.54.50.20.2 173.173. 2802803.53.5 174.174. 9 91.251.25 175.175. 17 16 1818 176.176. ( 15 14 21 11 )105105 177.177. (2020 7 4 ) 10 7 178.178. (3232 7 4

22、)4 4 179.179. (2121 15 7 ) 5 7 180.180. 9.69.61 13 3 3 2 181.181. 1010( 2 1 + + 3 1 ) 182.182. (1 1 9 5 ) 8 3 183.183. 2786278619981998 184.184. 24249999 185.185. 1011012.852.852.852.85 186.186. 2.52.51212 187.187. 4.874.872.012.01 188.188. 4545102102 189.189. 2.52.513130.40.4 190.190. 12.512.52.42.

23、4 191.191. 2.752.7529291.751.752929 192.192. 5.595.59(2.822.823.413.41) 193.193. 9 5 0.750.75 4 3 9 4 194.194. ( 12 5 19 1 )1212 19 7 195.195. 3 7 ( 7 3 28 3 ) 196.196. ( 27 1 36 1 ) 9 1 197.197. 818114141717 14 1 198.198. 13 12 1212 13 12 199.199. ( 24 13 16 13 ) 16 13 200.200. 8 3 11 7 8 5 11 7 20

24、1.201. 0.5750.57519191.91.94.254.25 202.202. 6 6 3 2 8 3 203.203. 5 1 + + 4 3 6 6 204.204. 5 2 4 1 2 1 8 5 205.205. 4 3 2 1 6 5 5 4 206.206. (2 2 8 3 4 4) 6 1 207.207. 4 1 (6 6 7 6 ) 7 3 208.208. 4 4 8 5 5 5 209.209. ( 2 1 5 2 ) 9 4 210.210. 2 1 3 2 8 8 4 1 211.211. 3 2 1 16 6 8 3 7 2 212.212. 1616(

25、1 1 2 1 4 1 ) 213.213. ( 8 1 4 3 )()(1 1 10 1 ) 214.214. 9 1 12 5 5 4 3 3 215.215. 9 4 7 2 18 5 2 1 216.216. 2 2 3 2 5 4 6 1 217.217. 4 4 15 8 3 2 5 1 218.218. 9 8 (9 9 4 3 ) 3 2 219.219. 5 7 3 8 + 5 8 5 7 220.220. 18( 4 9 + 5 6 ) 221.221. ( 1 6 1 12 )()(24 4 5 ) 222.222. 1 5 ( 2 3 + 1 5 ) 1 13 223.

26、223. 6 5 5 2 4 5 3 2 224.224. (32(32 4 1 17)17) 12 5 225.225. 25 18 16 9 25 7 16 9 16 9 226.226. 23 16 4 3 ) 3 1 2 1 ( 8 5 227.227. (99 10 9 )9 228.228. 8 8 7 4 3 2 6 1 229.229. ( 3 1 5 4 2 2) 11 6 230.230. 3 2 6 6 2 1 231.231. 1212(1 1 7 3 ) 232.232. 1010 5 2 4 3 9 2 233.233. 25 2 1515 5 4 2 1 234.

27、234. ( 2 1 3 2 4 1 )5 5 235.235. 2 2( 5 1 3 1 ) 15 4 236.236. 9 8 7 6 3 2 7 3 237.237. 5 1 3 3 5 4 3 1 238.238. 7272( 2 1 3 1 4 1 ) 239.239. 8 3 5 4 6 5 3 1 240.240. 7 1 11 6 11 5 7 7 241.241. 3 7 12 5 12 242.242. 8 15 5 16 + 5 27 10 9 243.243. 2 3 7+ 2 3 5 244.244. ( 5 7 4 7 + 4 7 ) 245.245. ( 4 1

28、12 5 ) 6 5 246.246. 5 9 12 5 12 7 9 5 247.247. (2525 4 3 ) 4 1 4 1 248.248. ) 7 3 21 4 9 5 (63 249.249. (21 7 3 7 4 21) 4 1 250.250. 5 4 6 5 8 5 251. 15 14 ( 5 4 3 2 ) 11 10 252. 3 1 3 2 1 253. 4 11 5 11 7 254. 5 4 7 4 4 5 2 1 255. 5 4 ( 8 5 2 1 ) 8 5 256. (4 5 1 4 ) )7 3 7 10 257. 10 - 7 19 - 12 19

29、 + 1 19 258. 1 8 1 2 (3 5 10 9 ) 259. 2 3 7+7+ 2 3 5 5 260. 1818( 4 9 + + 5 6 ) 261. 5 7 3 8 + + 5 8 5 7 262. 12 7 - -( ( 4 1 - - 12 5 ) ) 263. ) 14 3 7 1 4 1 (28 264. 48) 16 7 12 5 ( 265. 8 5 4 3 4 1 8 5 266. 36) 12 5 6 1 4 1 ( 267. 7.87.82.52.578780.750.75 268. 11 2 3+ 11 2 269. 21 5 15 3 8 8 270.

30、 5 4 + + 15 1 9 9 271. ( 2 1 3 1 )6 272. 18) 8 7 12 5 ( 273. 4 3 5 2 + + 4 3 0.60.6 274. 37.519.52.54 275. ( 6 5 5 4 )30 276. 6 5 5 6 10 9 5 9 277. 8 1 58 8 1 41 8 1 278. 5 4 6 5 5 2 5 3 279. 3 5 153 0.653 280. 251 3 5 2 3 10 281. 13.098.124.88 282. 12103450075 283. ( 2 15 3 11 ) 1511 284. ( 1 6 1 1

31、2 )2424 4 5 285.285. 51 50 3 286. 3 32 225251.251.25 287. 3 3 7 12 5 12 288. 25 7 101 25 7 289. 91 4 90 290. 4 3 5 2 + + 4 3 0.60.6 291. ( 4 1 + 4 1 )5 292. 9 4 6+6+ 3 1 293. 6 5 2 3 8 8 294. 11 2 3+ 11 2 295. 4 1 2 3 3 1 296. 4 1 2 3 3 1 297. 4 1 2 3 3 1 298. 9 2 3 1 3 2 299. 6 5 14 5 12 7 300. )(

32、25 12 25 13 9 5 301. ( 5 3 5 4 ) 2 15 302. 1 1 17 9 9 8 303. )(5 . 411 5 1 304. )( 8 1 4 3 21 305. 2 1 11 21 7 4 306. 28 2 6 4 10 7 307. 5 3 9 5 8 5 308. 2 15 3 2 5 3 309. 4 4 ( 16 5 8 3 ) 310. ( 7 3 14 5 )1414 311. 5 1 12 7 6060 312. 1 1 8 3 5 2 313. 3 3( 2 1 15 2 ) 314. ( 2 1 + 8 3 )5 315. 6 5 3 2

33、 8 8 316. ( 5 2 + + 15 1 )7 7 317. 1515 5 2 10 1 318. 1515( 3 1 - - 8 1 ) 319. 5 2 7 2 + + 5 2 7 2 320. 4 7 16 3 7 3 321. 2 1 8 3 4848 322. 5 3 4 5 + + 4 3 2.62.6 323. ( 2 1 3 1 )2 2 324.324. 4 4( 44 12 16 11 ) 325.325. 12 3 15 6 3 3 326.326. 3 14 9 7 2 2 327.327. 18 7 11 8 3 3 328.328. 4 3 1 4 1 32

34、9.329. 12 7 7 4 4 8 330.330. 5 4 4 3 5 1 331.331. 4 1 15 2 6 1 332.332. )( 8 5 8 3 2 1 333.333. ) 8 3 8 7 ( 4 7 334.334. 1212( 8 1 4 3 ) 335.335. 2 1 3 2 4 3 336.336. 6 15 15 1 4 3 337.337. 5 2 2525 7 6 338.338. 13 4 9 2 13 9 339.339. 6 1 12 5 8 7 340.340. ) 5 2 4 3 (5 341.341. 4 1 4 3 2 5 342.342.

35、4 1 4 3 2 5 343.343. 6 7 17 10 6 5 17 7 344.344. ) 3 1 5 4 ( 5 9 345.345. ) 3 1 5 4 ( 5 9 346.346. 7 5 2 1 4 3 347.347. 1( 4 1 + 8 3 ) 8 1 348.348. 9 1 12 5 5 4 3 349.349. (1 6 1 5 2 ) 9 7 350. 7 1 3 2 7 351. 12 11 ( 9 1 + 12 5 ) 352. 25 4 4 3 50 1 353. 25( 8 7 6 5 ) 354. 15 8 + 3 2 4 3 355. ( 6 5 4

36、 3 )( 3 2 + 9 4 ) 356. 1( 4 1 + 5 2 )3.5 357. (1 5 3 ) 3 2 4 358. 8 3 + 3 1 + 4 1 359. 5 1 3 1 ( 2 1 + 6 5 ) 360. 12(1 7 3 ) 361. (1 6 1 5 2 ) 9 7 362. (1 5 3 ) 5 2 4 363. ( 5 1 7 1 )70 364. 97 96 5 365. 5 3 8+ 5 3 2 366. 15 7 3 +15 7 4 367. ( 9 8 + 4 3 3 2 )72 368. 72( 2 1 3 1 + 4 1 ) 369. ( 9 5 +

37、13 1 )9+ 13 4 370. 30( 2 1 3 1 + 6 1 ) 371. 12( 2 1 3 1 + 4 1 ) 372. 5 1 + 9 4 8 3 + 6 5 373. 4 5 2 15 8 4 1 374. 48( 3 1 2 1 + 4 1 ) 375. 25 6 9+ 25 6 9 8 376. 24( 6 1 + 8 1 ) 377. ( 5 3 + 4 1 )6027 378. 5 6 1 6 5 379. 9 8 (9+ 4 3 ) 3 2 380. 8 7 3 2 + 8 7 2 1 381. 5 4 + 8 5 4 1 + 2 1 382. 2 9 8 4 3

38、 3 1 383. 30( 6 1 + 5 2 2 1 ) 384. 8 7 + 3 2 5 4 + 6 1 385. 5 4 3 1 5.2 3 1 1 4 3 386. 0.2512.5 32 1 387. ( 5 5 6 6 + + 3 3 8 8 ) ) 4848 388. 8 8 1717 2323 1 1 2323 9 9 1717 389. 1616 5 5 3 3 4 4 5 5 390. 2525 9 9 5 5 4 4 4 4 5 5 391. 1212( 3 2 6 1 ) 392. 2424 36 5 8 3 393. 10 7 16 5 32 21 394.394.

39、12 5 25 7 14 3 395.395. ( 8 7 16 13 ) 16 13 396.396. 7 7 1313 3 3 4 4 3 3 4 4 6 6 1313 397.397. ( 5 2 5 2 2 2) 3 5 398.398. 16 15 ( 12 7 6 1 ) 2 1 399.399. 25 8 99 + 99 + 25 8 400.400. (175%)()(1+ 4 1 ) 401.401. 2.72.7(1(1- -20%20%- -18%)18%) 402.402. 7178 (60%) 20487 403.403. 11 6 8 3 9 44 404.404.

40、 7 1 4 3 4 3 5 405.405. ) 5 2 7 4 (35 406.406. ) 15 11 15 4 3( 5 4 407.407. ) 3 1 9 2 () 16 3 75. 0( 408.408. 6 7 6 7 6 6 409.409. 9 90.250.259 90.250.25 410.410. (31 2 )( )(1 4 2) 411.411. 2. 9( 1 12 1 8 ) )24 412.412. (222 3 ) )2 9 413.413. 4 9 155 9 1 15 414.414. 48( 7 12 2) 2 3 415.415. 23 8 9 3

41、 4 1 27 416.416. 5 9 7 5 9 11 417.417. 5( 2 3 1 5 ) 1 13 418.418. 7 4 4 3 5 1 5 4 419.419. 6 1 3 2 7 6 14 5 420.420. 6 5 4 1 3 2 421.421. 13 6 7 1 7 13 8 422.422. 2 21 1 2 2 6.66.62.52.56 63 3 5 5 423.423. 11117 7 8 8 6 61 1 3 3 1 12 2 3 3 424.424. 4.6+4.6+3 32 2 5 5 + +6 6 3 3 5 5 +5.4 +5.4 425.425

42、. 3 3 4 4 1515 ( (5 5 7 7 3 3 1414 3 3 4 4 426.426. 2.8+2.8+5 54 4 9 9 +7.2+ +7.2+3 35 5 9 9 427.427. 4 43 3 8 8 +2.25+ +2.25+5 55 5 8 8 + +7 7 3 3 4 4 428.428. 7 72 2 5 5 + +4 4 5 5 7 7 + +2 2 3 3 5 5 429.429. 5353 6 6 1111 16164 4 7 7 + +16 16 5 5 1111 430.430. 2 23 3 7 7 + +3 3 5 5 9 9 3 33 3 7 7

43、 + +1 1 4 4 9 9 + +1 1 4 4 7 7 431.431. 0.75+0.75+5 5 8 8 + + 1 1 4 4 +0.375 +0.375 432.432. 4 4 5 5 9 94 4 5 5 + +99 994 4 5 5 + +999 9994 4 5 5 + +9999 99994 4 5 5 433.433. 4 44 4 5 5 ( (2 24 4 5 5 + + 5 5 1212 ) ) 434.434. 5 5- -2 214 14 1717 - -1 1 3 3 1717 435.435. 9 95 5 6 6 4.25+4.25+4 41 1 4

44、 4 6 6 0.6250.6250.5+0.5+5 5 8 8 + + 1 1 2 2 62.5% 62.5% 436.436. 31313 3 8 8 7272 5 5 1313 31313 3 8 8 437.437. 0.250.2563.563.51 1 4 4 13131 1 2 2 438.438. 16164 4 5 5 +( +(2 24 4 7 7 - -1.8) 1.8) 439.439. 75.375.399+75.399+75.3 440.440. 4.64.63.7+543.7+540.370.37 441.441. 2.52.53 3 7 7 0.4 0.42 2

45、1 1 3 3 442. 2 21 1 2 2 6.6+2.56.6+2.56 63 3 5 5 443.443. 70970999+70999+709 444.444. 0.250.254848 445.445. 7272156156- -56567272 446.446. 25253232125125 447.447. 448.448. 449.449. 450.450. 7.67.61 1 4 3 17.517.5 25 6 451.451. ( 5 1 7 2 )5 57 7 452.452. 999999 9 8 9999 9 8 9 9 9 8 3 1 453.453. 25. 1

46、 5 4 444 454.454. 252537370.40.4 455.455. 12512539391616 456.456. 3 1 3 2 7 5 457.457. 7 12 5 9 21 4 458.458. 6 6 7 7 1515 2.52.5- -2 21 1 2 2 4 4 7 7 1515 3 3 8 8 9 9 +3.125+3.125+1 11 1 9 9 + +1 1 7 7 8 8 2.5 2.5( ( 9 9 1010 + + 9 9 1010 + + 9 9 1010 + + 9 9 1010 ) ) 459.459. 22223 3 4 4 +25 +2575

47、%75%- -7 70.750.75 460.460. 5 17 6 5 3 11 )( 461.461. 8 3 5 3 3 5 8 5 462.462. ) 6 1 8 1 (48 463.463. 20 9 3 5 4 464.464. ) 21 10 7 5 ( 10 3 465.465. 8 15 5 16 + 5 27 10 9 466.466. 3 7 12 5 12 467.467. 5 7 3 8 + 5 8 5 7 468.468. 251 3 5 2 3 10 469.469. 13.098.124.88 470.470. 1 8 1 2 (3 5 10 9 ) 471.

48、471. ( 2 15 3 11 ) 1511 472.472. 1( 4 1 + 8 3 ) 8 1 473.473. 9 1 12 5 5 4 3 474.474. (1 6 1 5 2 ) 9 7 475.475. 7 1 3 2 7 476.476. ( 6 5 4 3 )( 3 2 + 9 4 ) 477.477. 1( 4 1 + 5 2 )3.5 478.478. 3 7 12 5 12 479.479. 5 7 3 8 + 5 8 5 7 480.480. 8 15 5 16 + 5 27 10 9 481.481. 18( 4 9 + 5 6 ) 482.482. 2 3 7

49、+ 2 3 5 483.483. ( 1 6 1 12 )24 4 5 484.484. ( 5 7 4 7 + 4 7 ) 4 7 485.485. 1 5 ( 2 3 + 1 5 ) 1 13 486.486. 3 7 12 5 12 487. 5 7 3 8 + 5 8 5 7 488.488. ( 6 5 5 4 )30 489.489. 3 1 3 2 1 490.490. 2 3 7+ 2 3 5 491.491. ( 1 6 1 12 )24 4 5 ) 492.492. ( 5 7 4 7 + 4 7 ) 4 7 493.493. 1 5 ( 2 3 + 1 5 ) 1 13

50、494.494. (32(32 4 1 17)17) 12 5 495.495. (2525 4 3 ) 4 1 4 1 496.496. ( 4 1 12 5 ) 6 5 497.497. 5 9 12 5 12 7 9 5 498. 6 5 5 2 4 5 3 2 499.499. ) 7 3 21 4 9 5 (63 500.500. 23 16 4 3 ) 3 1 2 1 ( 8 5 501.501. (21 7 3 7 4 21) 4 1 502.502. (99 10 9 )9 503.503. 5 4 6 5 8 5 504.504. 15 14 ( 5 4 3 2 ) 11 1

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